Air-deflector.



H. R. GREGORY.

AIR DEFLECIOR.

APPLICAUON man JUHEZB, Hi6.

I Patented Apr. 3, 1917.

LQLQSu HARRISON R. GREGORY, OF ST. LOUIS, MISSOURI.

AIR-DEFLEGTOR.

Specification of Letters Patent.

, Patented Apr. 3, 1917.

Application filed June 26, 1916. Serial No. 105,975.

To all whom it may concern:

Be it known that I, HARRISON R. Gnnconx, a citizen of the United States,and resident of St. Louis, Missouri, have invented certaln new anduseful Improvements in Air-Deflectors, of which the following is a spec1fication containing a full, clear, and exact description, referencebeing had to the accompanying drawings, forming a part thereof.

The object of my invention is to provide an improved draft deflector forlamp burners, and it consists in the novel construction and arrangementof parts hereinafter described and specifically designated in the claimfound at the end of this specification.

The object of my invention is to provide an improved device of the classnamed, which shall be cheap, highly efiicient, simple in construction,and yet be readily detachable from the wick-tube for the purpose ofcleaning the parts.

In the drawings:

Figure l is a vertical section of a portion of a common oil-lamp and itsburner, having my invention applied thereto.

Fig. 2 is a detail vertical section of the burner, having my inventionin place thereon, the section being taken on line 22 of Fig. l, and

Fig. 3 is a perspective view of my improved draft-refiector detached.

The numeral 1 designates the body of the deflector, which is in the formof an elongated truncated hollow pyramid of sheetmetal, but having itsbottom, top and both of its ends open, for the purpose of permittingcurrents of air to freely enter during the operation of the device.

At the base of the deflector 1, and extending across each end thereof,is a fiat integral horizontal cross-bar 2, which forms the onlyconnection between the opposite inclined sides of the said pyramid.

Between said end cross-bars 2 is a rectangular air-entrance 3, which isof large dimensions, and being unobstructed by the usualsupporting-legs, is capable of admitting large quantities of air to theinterior of the deflector, from the base thereof, and this, inconnection with the freely-open ends of the device, provides ampleaccess for air to the interior of the deflector.

The deflector is secured in position detachably upon the wick-tube 4 ofthe common lamp-burner 5 by means of the springclamps 6, one of which'islocated beneath and formed integral with the cross-bar 2 at one end ofsaid deflector, and the other one of which spring-clamps 6 is locatedbeneath and formed integral with the cross-bar at the opposite end ofsaid deflector.

Said spring-clamps 6 are U-shaped in plan-view, and the opposite springsidearms thereof are cut away on their upper edges 7 on an incline, asshown, to make said arms more flexible in their yielding engagement withthe opposite sides of said wick-tube from their bases toward their freeends.

The free corners of the sides of the deflector are rounded off at 8, forthe purpose of avoiding sharp projections thereat, and to give saidcorners a more finished appearance. It will thus be seen that the upperends, or rather, the upper edges of the said spring-clamps 6 are rigidlyaiiixed to the comparatively rigid cross-bars 2, which efl'ectuallyprevents said clamps from moving toward or from each other, and retainsthem at all times the proper distance apart, to fit the wick-tube width,and enables the said opposite flexible side-arms of said clamps (withtheir inclined or tapered portions) to more efl'ectively engage thesides of said wick-tube without any possibility of slipping off of thesame.

The operation is as follows:

The deflector is placed beneath the common burner-cap 9, with the saidspringclamps 6 astride the opposite edges of said wick-tube l andresting upon the burnerscreen plate 10, so that there will be ampleunobstructed air passage at the base of the pyramid, and between theinner surface of said burner-cap and the outer surfaces of theside-walls of the deflector, as shown in Fig. 2.

When the wick is lighted the deflector will act very efliciently to notonly heat the said wick-tube, but to heat the currents of air as theyare drawn upwardly on both the interior and exterior of the deflectorwalls,

and thereby vaporize the oil in said wicktube, as well as to cause theoxygen of the heated air to unite with the vaporized oil, and produce amore perfect combustion and a larger, and brighter flame above the saidburner-cap, as indicated by dotted lines in Fig. 1.

The open ends of the deflector offer no obstruction to the entrance ofthe air to the interior of the deflector.

The deflector also aets'as a very efficient air distributer, as well asa pre heater of the air before it reaches the flame, and this (as iswell known) will produce a more perfect combination of the oxygen withthe heated oil-vapor.

The following is What I claim as my in- V vention Animprovedair-deflector for lamp-burners, comprising an oblong hollowpyramid of metal, the sides of which are closed, and the top, ends andbase of which are open and unobstructed, the air-entrance at the basebeing devoid of the usual depending supporting legs thereat; rigid flatcross-bars at the opposite ends of said base; and the opposite U-shapedwick-tube clamps rigidly fixed to the said cross-bars and extendingtoward the opposite clamps carried by the opposite cross-bar.

In testimony whereof, I have signed my name to this specification, inpresence of two subscribing witnesses.

HARRISON R. GREGORY.

Witnesses HENRY L. HIonoN, A. K. STEWART.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

